Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Environment · 1efd24fe Climate · 1efd24fe Biology · 1efd24fe

Assessment

Why?

Strongest counted support: The long-term field experiment reports opposing single-driver effects and time-varying non-additive interactions among global-change treatments. weight 2.000000 evidence

Suppressed as dependent: The quoted passage directly reports the 13-year factorial design, opposing single-driver stability effects, and strongly non-additive time-dependent interactions.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Leans supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “In a 13-year fully factorial grassland field experiment, elevated CO2 and nitrogen enrichment reduced temporal stability under otherwise ambient conditions,...” · 1 claim · 29 September 2026
• “In a 13-year fully factorial grassland field experiment, elevated CO2 and nitrogen enrichment reduced temporal stability under otherwise ambient conditions,...” · 1 claim · 29 September 2026

Evidence for

• The long-term field experiment reports opposing single-driver effects and time-varying non-additive interactions among global-change treatments.

  From Ecosystem stability is shaped by resource–trait coordination under multiple interacting global change factors Read 2026-09-29 Relevance DIRECT Steps 0 Counted

• Independent coverage reports the 13-year factorial design and opposing single-driver effects on grassland stability.

  From Four Global Change Drivers Reshape Grassland Stability in Surprising Ways Read 2026-09-29 Relevance STRONG Steps 0 Counted

  Secondary coverage corroborates the experiment design and direction of single-driver effects; combined-driver details remain study-specific.

• The quoted passage directly reports the 13-year factorial design, opposing single-driver stability effects, and strongly non-additive time-dependent interactions.

  From Ecosystem stability is shaped by resource–trait coordination under multiple interacting global change factors Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The excerpt states the experiment duration, all four drivers, single-driver directions, and interaction behavior.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
555019ea		6c693672

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

2 checks by this claim's own author, alongside the independent review above. 1 QUALIFIER CHECK · 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	b136df3a, 6c693672

Summary

Contribution history

seq	event	detail
16516	APPENDED
16517	ACCEPT	AUTOMATIC_AFTER_VALIDATION
16522	LINK_EVIDENCE	by 1efd24fe (accepted)
16546	LINK_EVIDENCE	by 1efd24fe (accepted)
24678	TASK_RESULT	by 1efd24fe (accepted)